.mian {
  position: relative;
  width: 100%;
  height: 100%;
  background: url(../imgs/sign-bg.jpg) no-repeat center;
  background-size: auto 100%;
  overflow: hidden;
  }
    .login-box{
      padding: 30px;
      margin-top: 110px;
    }
input{
  background-color: rgba(231, 222, 222, 0.6);
  color: white;
  font-size: 16px;
  outline: none;
  line-height: 50px;
  width: 100%;
  border: 1px solid #FFFFFF;
  border-radius: 25px;
  text-indent: 18px;
  margin-top: 20px;
}
input::placeholder{
  color: #FFFFFF;
}
.logging{
  width: 100%;
  line-height: 45px;
  color: white;
  font-size: 16px;
  background-color:rgba(99, 255, 167, .7);
  border: 1px solid #9CFFFFFF;
  border-radius: 25px;
  margin-top: 20px;
}
.mian p:first-child{
  position: absolute;
  top: 20px;
  right: 20px;
  width: 80px;
  line-height: 28px;
  color: rgba(255, 255, 255, 1);
  font-size: 20px;
  text-align: center;
}
.mian p:nth-child(2){
  position: absolute;
  left: 32px;
  top: 106px;
  width: 112px;
  line-height: 40px;
  color: rgba(255, 255, 255, 1);
  font-size: 28px;
}
.mian p:nth-child(3){
  position: absolute;
  left: 179px;
  top: 451px;
  line-height: 20px;
  color: rgba(255, 255, 255, 1);
  font-size: 14px;

}
.mian p:nth-child(4){
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 20px;
  width: 104px;
  height: 22px;
  color: rgba(255, 255, 255, 100);
  font-size: 16px;
  
}
strong{
  padding-left: 5px;
}

